/Engine/Source/Editor/Sequencer/Public/ISequencerSection.h
Called when a key on this section is double clicked
A reply in response to double clicking the key
virtual [FReply](API\Runtime\SlateCore\Input\FReply) OnKeyDoubleClicked ( const [TArray](API\Runtime\Core\Containers\TArray)< [FKeyHandle](API\Runtime\Engine\Curves\FKeyHandle) > & KeyHandles )